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tatuchka [14]
3 years ago
7

Help. Really important!!

Mathematics
1 answer:
Lerok [7]3 years ago
6 0

Answer:

First on is £12 cuz when the mile is 0, it starts with 12.

Second is £28 (I think)

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Which of the following is a conditional statement?
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Read 2 more answers
The Nuthouse offers a mixture of soy nuts and almonds, Almonds
elena55 [62]

Answer:

  14 pounds

Step-by-step explanation:

The given equations can be solved for y by substituting for x. The first equation is convenient for writing x in terms of y.

<h3>Solution</h3>

  x = 20 -y . . . . . . . subtract y from the first equation

  7(20 -y) +5.5y = 119 . . . . . substitute for x in the second equation

  140 -1.5y = 119 . . . . . . . . simplify

  21 = 1.5y . . . . . . . . . . . add 1.5y -119 to both sides

  14 = y . . . . . . . . . . . .divide by 1.5

14 pounds of soy nuts should be used in the mixture.

__

<em>Additional comment</em>

There are many ways to solve a system of two linear equations. The attachments shows a matrix solution using a suitable calculator. It tells us that x=6 and y=14, as we found above.

6 0
2 years ago
Write the expression-3x2+2y2+5xy-2y+5x2-3y2 in simplest form A how many terms are in the simplified expression? B how many terms
natima [27]

Answer:

  • 4
  • 2

Step-by-step explanation:

  = x²(-3 +5) +y²(2 -3) +5xy -2y

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b) 2 terms have negative coefficients (-y² and -2y)

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